Stackable storage rack assembly

ABSTRACT

A stackable rack assembly, having a first rack having a first bracket, the first bracket having a first arcuate member having a first end and a second end, and further having a first extension stub cantilevered from the first arcuate member proximate the second end; a second arcuate member having a first end and a second end, and further having a second extension stub cantilevered from the second arcuate member proximate the second end; and, a transverse member connecting the first and second arcuate members together at their respective first ends, wherein the first and second arcuate members are arranged at an acute angle to the transverse member; a second bracket identical to and arranged opposite from the first bracket of the first rack; and, a shelf secured between the first and second brackets; a second rack identical to the first rack, and arranged to lockingly engage the first rack.

FIELD OF THE INVENTION

The invention relates generally to furniture and modular storage systems and more specifically, to stackable storage racks.

BACKGROUND OF THE INVENTION

Stackable storage racks are used to store and organize many objects, for example, toys, books, clothing, shoes, wine, food, electronics, e.g., compact discs (CDs), digital video discs (DVDs), audio cassettes, and records, work files, indoor plants, and desk accessories such as clocks or mugs. Such stackable storage racks can be incorporated within comprehensive standard or custom built-in cabinetry or closets. Alternatively, stackable storage racks can be freestanding and arranged on a countertop, in a closet, under a bed, along a wall or some other designated space. While stackable storage racks serve to store and/or organize a wide variety of objects, stackable storage racks can also add a sleek or distinctive design feature to a room. Due to the functionality and aesthetic nature of stackable storage racks, a vast array of stackable storage racks can be constructed. Common parameters influencing the construction of stackable storage racks include the style of the room where the racks will be displayed, the number and type of objects to be stored and/or organized, and the available space for the racks.

Typically, stackable storage racks are made of plastic, wood, bamboo, wire, metal, steel and/or metal mesh. Some stackable storage racks rest along the floor. Other stackable storage racks are mounted on wheels. Still other stackable storage racks include angled shelving or planar shelving which is continuous or spaced apart. There are even stackable storage racks that are expandable along the floor to accommodate increased or diminished storage and/or organizing capacities. Freestanding stackable storage racks usually include rigid cubbies or frames.

Freestanding stackable storage racks including cubbies typically include a plurality of rectangular compartments arranged next to and on top of other rectangular compartments. Each compartment usually has a top and bottom, right and left sides, and a back. However, the front is left open so a user can access the compartment. Such free standing stackable storage racks can be difficult to keep clean because dirt can collect in crevices along the bottom edges of the right, left, and rear sides. Dirt and moisture can collect on the bottom surface and damage the finish of the compartment. Additionally, although such freestanding stackable storage racks are sturdy, they are usually heavy and/or bulky to lift or move. These freestanding stackable storage racks are also problematic for oversized objects since the size of the cubbies is fixed throughout.

Freestanding stackable storage racks including frames typically include two frames on each end and laterally arranged members connected between the frames. The laterally arranged members can be continuous or spaced apart. These frame-type stackable storage racks are easier to lift and/or move than the cubby-type stackable storage racks because they are constructed with less material. However, the frame-type stackable storage racks can be problematic. The frame-type stackable storage racks having non-continuous lateral members can be problematic for shoes because shoes come in different styles, shapes, and sizes. For example, a large shoe might fit differently on such a frame-type stackable storage rack than a small shoe. The small shoe might slip between the spaced apart laterally arranged members. The laterally arranged members might not align properly with toe and heel portions of a shoe, as another example. Such a frame-type rack could scuff or damage a shoe not properly aligned with the lateral members. Additionally, when these frame-type storage racks are stacked, one rack merely rests on top of another. Such a stacked arrangement is unstable because a slight bump can knock the racks out of alignment. Moreover, in order to move these stacked racks a user must move each rack separately.

There are also freestanding stackable storage racks including frames that are secured one on top of another by attachment means such as screws. Although these racks are more stable, they can become deformed because the racks cannot automatically disengage from stackable arrangement when the racks are lifted or moved and objects supported by the racks are too heavy.

A freestanding stackable storage rack is described in U.S. Pat. No. 5,152,407 (Massoudnia et al.), which discloses a stackable rack formed essentially of wire. The stackable rack disclosed includes a perimeter wire, laterally and transversely arranged wires connected to the perimeter wire, legs, foot loops, and handle loops. The perimeter wire and laterally and transversely arranged wires form a support means and such support means is welded to the legs of the invention. The handle loops are angled inwardly and provide space for the foot loops of another rack stackably arranged above. A plurality of racks may be stacked one upon the other by means of an inherent resiliency of the wire. However, the invention disclosed in Massoudnia et al. can only be used in the upright arrangement because the handle loops are not as stable as the foot loops. Additionally, the invention disclosed cannot be stored or packaged compactly because the support means is welded to the legs.

Another freestanding stackable storage rack is described in U.S. Patent Application No. 2004/0238467 (Tully), which discloses a stackable wine rack. The wine rack disclosed includes a pair of longitudinal members adapted to support wine bottles, feet, upwardly extending side members, and horizontal members. The racks are stackable, one on top of another, by engagement of the feet of a rack with the horizontal members of a rack stacked below. The stackable arrangement is achieved due to inherent resiliency of the structure. The invention disclosed is problematic due to the integral nature of the rack. For example, if a longitudinal member becomes damaged or deformed, the longitudinal member cannot simply be replaced; the entire rack would have to be replaced.

Therefore, there has been a long-felt need for a stackable storage rack that is stable, inexpensive, semi-permeable, lightweight, simple to assemble, stackable by means of an inherent resiliency, and can be arranged upright or upside-down. There is a need for such a stackable storage rack that is easy to clean and provides a user with the ability to easily clean the floor underneath the rack. Additionally, there is a need for such a stackable storage rack that can be easily disassembled for packaging purposes or in case parts need to be replaced. Further, there is a need for a stackable storage rack that can automatically disengage from stackable arrangement, if necessary.

BRIEF SUMMARY OF THE INVENTION

The invention comprises a stackable rack assembly, having a first rack having a first bracket, the first bracket having a first arcuate member having a first end and a second end, and further having a first extension stub cantilevered from the first arcuate member proximate the second end; a second arcuate member having a first end and a second end, and further having a second extension stub cantilevered from the second arcuate member proximate the second end; and, a transverse member connecting the first and second arcuate members together at their respective first ends, wherein the first and second arcuate members each are arranged at an acute angle with respect to the transverse member. The invention further comprises a second bracket identical to and arranged opposite from the first bracket of the first rack and a shelf secured between the first and second brackets. A second rack identical to the first rack is operatively arranged to lockingly engage the first rack to form the rack assembly.

A general object of the invention is to provide a stackable storage rack that can be arranged upright and upside-down.

Another object of the invention is to provide a stackable storage rack that is stackable by means of an inherent resiliency.

A further object of the invention is to provide a stackable storage rack that is easy to clean, semi-permeable, and provides access to the floor on which the rack stands so that the floor underneath the rack can be easily cleaned.

Yet another object of the invention is to provide a stackable storage rack that can be disassembled.

Still another object of the invention is to provide a stackable storage rack that is lightweight and can be easily moved so that each stacked rack does not have to be moved separately.

Another object of the invention is to provide a stackable storage rack that can become stackably disengaged when the load of the objects stored and/or organized on the racks becomes too great.

A further object of the invention is to provide a stackable storage rack that can hold objects having all different styles, shapes, and sizes.

Yet another object of the invention is to provide a stackable storage rack that has improved stability.

These and other objects and advantages of the present invention will be readily appreciable from the following description of preferred embodiments of the invention and from the accompanying drawings and claims.

BRIEF DESCRIPTION OF THE DRAWINGS

The nature and mode of operation of the present invention will now be more fully described in the following detailed description of the invention taken with the accompanying figures, in which:

FIG. 1A is a perspective view of the stackable racks of the invention shown upright;

FIG. 1B is a perspective view of the stackable racks of the invention shown inverted;

FIG. 2A is a front view of the stackable racks of the invention;

FIG. 2B is a rear view of the stackable racks of the invention;

FIG. 3A is a left view of the stackable racks of the invention;

FIG. 3B is a right view of the stackable racks of the invention;

FIG. 4A is a top plan view of the stackable racks of the invention;

FIG. 4B is a bottom plan view of the stackable racks of the invention;

FIG. 5A is a perspective view of the stackable racks of the invention showing one rack partially engaged with a second rack;

FIG. 5B is a perspective view of the stackable racks of the invention showing a partial cut out of the top rack to illustrate how the racks engage;

FIG. 6 is an exploded view of a single stackable rack of the invention;

FIG. 7A is a detailed view of the stackable rack of the invention showing the spring button clip in the engaged position;

FIG. 7B is a detailed view of the stackable rack of the invention showing the spring button clip in the partially disengaged position;

FIG. 7C is a detailed view of the stackable rack of the invention showing the spring button clip in the disengaged position; and,

FIG. 8 is a detailed view of the stackable rack of the invention showing how the stabilizers are applied.

DETAILED DESCRIPTION OF THE INVENTION

At the outset, it should be appreciated that like drawing numbers on different drawing views identify identical, or functionally similar, structural elements of the invention. Drawing numbers in prime identify separate structural elements that are identical or functionally similar. While the present invention is described with respect to what is presently considered to be the preferred aspects, it is to be understood that the invention as claimed is not limited to the disclosed aspect. The present invention is intended to include various modifications and equivalent arrangements within the spirit and scope of the appended claims.

Furthermore, it is understood that this invention is not limited to the particular methodology, materials and modifications described and as such may, of course, vary. It is also understood that the terminology used herein is for the purpose of describing particular aspects only, and is not intended to limit the scope of the present invention, which is limited only by the appended claims.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood to one of ordinary skill in the art to which this invention belongs. Although any methods, devices or materials similar or equivalent to those described herein can be used in the practice or testing of the invention, the preferred methods, devices, and materials are now described.

Adverting now to the Figures, FIG. 1A is a perspective view of the invention showing two stackable racks, first stackable rack 10 and second stackable rack 10′, in an upright lockingly engaged stacked arrangement. First stackable rack 10 is shown supporting a cylindrical container. Second stackable rack 10′ is shown supporting a book and a pair of shoes. First stackable rack 10 comprises first bracket 11, second bracket 12, and shelf 13. First bracket 11 and second bracket 12 are identical structurally. First bracket 11 faces second bracket 12 at opposite ends of shelf 13. Similarly, second stackable rack 10′ comprises first bracket 11′, second bracket 12′, and shelf 13′. First bracket 11′ and second bracket 12′ are identical. First bracket 11′ faces second bracket 12′ at opposite ends of shelf 13′. Second stackable rack 10′ is identical to first stackable rack 10. FIG. 1B shows a perspective of the two stackable racks 10, 10′ inverted. First stackable rack 10 is shown supporting a pair of shoes. Second stackable rack 10′ is shown supporting a book and a cylindrical container. An additional pair of shoes is shown under second stackable rack 10′. It should be appreciated that the invention, comprising a single rack, two racks, or more than two racks, can be oriented upright or upside-down. In FIG. 1B, first stackable rack 10 is lockingly engaged atop second stackable rack 10′. Again, first stackable rack 10 comprises first bracket 11, second bracket 12, and shelf 13. Second stackable rack 10′ comprises first bracket 11′, second bracket 12′, and shelf 13′. To invert first stackable rack 10 and second stackable rack 10′ a user can rotate the racks without separating the locking engagement. In the inverted arrangement, a user can store objects on the floor under second stackable rack 10′. In either arrangement, a user can easily clean the floor or some other supportive surface under stackable racks 10, 10′. Additionally, in either arrangement, oversized objects can be stored/organized on the upper-most surface. Stackable racks 10, 10′ are lightweight due to the minimal amount of material used in construction.

First bracket 11, second bracket 12, first bracket 11′, and second bracket 12′ are identical. First bracket 11 in FIG. 1A comprises first arcuate member 14, second arcuate member 15, and transverse member 16. First and second arcuate members 14, 15 are identical and arranged substantially upright. Transverse member 16 is arranged substantially horizontal. Together, first and second arcuate members 14, 15 and transverse member 16 form a unitary structure. However, it should be appreciated that first and second arcuate members 14, 15 and transverse member 16 could be separate structural components secured together by any suitable means, for example, screws. Preferably, first and second arcuate members 14, 15 and transverse member 16 are formed from metal, e.g., steel and chrome plated.

First arcuate member 14 has first end 17 and second end 18. Second arcuate member 15 includes first end 19 and second end 20. Transverse member 16 of first bracket 11 connects first and second arcuate members 14, 15 together at their respective first ends 17, 19. Second bracket 12 also comprises first arcuate member 21, second arcuate member 22, and transverse member 23 which are identical to first arcuate member 14, second arcuate member 15, and transverse member 16 of first bracket 11, respectively. In FIG. 1A, second arcuate member 22 and transverse member 23 are not visible under shelf 13′ and shelf 13′ in the embodiment shown is opaque. However, shelf 13′ and shelf 13 could be transparent. In such a case, second arcuate member 22 and transverse member 23 would be visible under shelf 13′. First bracket 11′ of second stackable rack 10′ shown atop first bracket 11 of first stackable rack 10 comprises first arcuate member 24, second arcuate member 25, and transverse member 26 which are identical to first arcuate member 14, second arcuate member 15, and transverse member 16 of first bracket 11, respectively. Second bracket 12′ of second stackable rack 10′ shown atop second bracket 12 of first stackable rack 10 comprises first arcuate member 27, second arcuate member 28, and transverse member 29 which are identical to first arcuate member 14, second arcuate member 15, and transverse member 16 of first bracket 11, respectively. Transverse members 23, 26, 29 connect their respective arcuate members 21, 22, 24, 25, 27, 28 at their respective first ends 53, 55, 57, 59, 61, 63 to be described in further detail below. In FIG. 1A, first end 55 and second end 56 are not visible under shelf 13′. In FIG. 1B, first ends 53, 61 and second end 62 are not visible under shelf 13 and shelf 13′, respectively. Arcuate members 21, 22, 24, 25, 27, 28 have the following respective second ends 54, 56, 58, 60, 62, 64 which will be described in further detail below.

FIG. 2A is a front view of the invention as shown in FIG. 1A. Second stackable rack 10′ is lockingly engaged above first stackable rack 10. First bracket 11 of first stackable rack 10 is shown opposite second bracket 12. First bracket 11′ of second stackable rack 10′ is shown opposite second bracket 12′. Shelf 13 of first stackable rack 10 is disposed between first and second brackets 11, 12. Shelf 13′ of second stackable rack 10′ is between first and second brackets 11′, 12′. Shelf 13 is secured to first arcuate member 14 of first bracket 11 proximate second end 18 of first arcuate member 14. Shelf 13 is also secured to first arcuate member 21 of second bracket 12 proximate second end 54 of first arcuate member 21. Shelf 13′ is secured to first arcuate member 24 of bracket 11′ proximate second end 58. Shelf 13′ is secured to first arcuate member 27 of bracket 12′ proximate second end 62.

First arcuate member 14 further includes first extension stub 33 cantilevered from first arcuate member 14 proximate second end 18. First extension stub 33 attaches to first rail 40 of shelf 13. First arcuate member 21 of second bracket 12 further includes first extension stub 34 cantilevered from first arcuate member 21 proximate second end 54. First extension stub 34 attaches to first rail 40 of shelf 13 opposite first extension stub 33. First arcuate member 24 of first bracket 11′ of second stackable rack 10′ includes first extension stub 35 cantilevered from first arcuate member 24. First extension stub 35 attaches to first rail 41 of shelf 13′. Similarly, first arcuate member 27 comprises first extension stub 36 cantilevered from first arcuate member 27. First extension stub 36 attaches to first rail 41 of shelf 13′ opposite first extension stub 35.

As discussed above, first arcuate member 14 of first bracket 11 is identical to second arcuate member 15 of first bracket 11. Accordingly, second arcuate member 15 is not visible behind first arcuate member 14 in FIG. 2A. Similarly, first arcuate member 21 of second bracket 12 is identical to second arcuate member 22. Second arcuate member 22 is not visible behind first arcuate member 21 in FIG. 2A. Similarly, second arcuate members 25 and 28 are not visible in front of first arcuate members 24, 27, respectively. Transverse member 16 is arranged under first extension stub 35 and not visible. Transverse member 23 is arranged under first extension stub 36 and not visible. Transverse member 26 is arranged above first arcuate member 24 and includes stabilizer 70 surrounding the circumference of and removably secured to transverse member 26. Transverse member 29 is arranged above first arcuate member 27 and includes stabilizer 72 surrounding the circumference of and removably secured to transverse member 29. Stabilizers 70, 72 provide stability when second stackable rack 10′ is inverted and transverse members 26, 29 are arranged on a floor or some other supportive surface.

FIG. 2B shows a rear view of the invention as shown in FIG. 1A. Second rail 42 of shelf 13 is visible between first and second brackets 11, 12 of stackable rack 10. Second rail 43 of shelf 13′ is visible between first and second brackets 11′, 12′ of stackable rack 10′. Second arcuate member 15 is visible in front of first arcuate member 14. Second arcuate member 15 includes second extension stub 44 cantilevered from second arcuate member 15. Second extension stub 44 connects with shelf 13 proximate second end 20 of second arcuate member 15. Second arcuate member 22 of bracket 12 is visible in front of first arcuate member 21. Second arcuate member 22 comprises second extension stub 45 cantilevered from second arcuate member 22. Second extension stub 45 connects with shelf 13 proximate second end 56. Second arcuate member 25 of bracket 11′ is visible in front of first arcuate member 24. Second arcuate member 25 comprises second extension stub 46 cantilevered from second arcuate member 25. Second extension stub 46 connects with shelf 13′ proximate second end 60 of second arcuate member 25. Second arcuate member 28 of bracket 12′ is visible in front of first arcuate member 27. Second arcuate member 28 comprises second extension stub 47 cantilevered from second arcuate member 28. Second extension stub 47 connects with shelf 13′ proximate second end 64 of second arcuate member 28. Transverse member 16 is arranged under second extension stub 46. Transverse member 23 is arranged under second extension stub 47. Transverse member 26 is arranged atop second arcuate member 25 and includes stabilizer 71 surrounding the circumference of and removably secured to transverse member 26. Transverse member 29 is arranged atop arcuate member 28 and includes stabilizer 73 surrounding the circumference of and removably secured to transverse member 29. Stabilizers 71, 73 provide stability when second stackable rack 10′ is inverted and transverse members 26, 29 are arranged on a floor or some other supportive surface.

The invention shown in FIG. 1A is illustrated from the left in FIG. 3A. Second stackable rack 10′ is lockingly engaged above first stackable rack 10. First bracket 11′ is not visible behind second bracket 12′ and first bracket 11 is not visible behind second bracket 12. Second bracket 12′ is atop second bracket 12. As discussed above, transverse member 23 connects first and second arcuate members 21, 22 at their respective first ends 53, 55. Similarly, transverse member 29 connects first and second arcuate members 27, 28 at their respective first ends 61, 63. First and second arcuate members 21, 22 are arranged at acute angle α relative to transverse member 23. Similarly, first and second arcuate members 27, 28 are arranged at acute angle α relative to transverse member 29. Acute angle α in second brackets 12, 12′ are identical. Acute angle α in second bracket 12 provides a greater distance between first ends 53, 55 arranged on opposite ends of transverse member 23 as compared with the distance between second ends 54, 56 of first and second arcuate members 21, 22, respectively. Acute angle α in second bracket 12′ provides a greater distance between first ends 61, 63 arranged on opposite ends of transverse member 29 as compared with the distance between second ends 62, 64 of first and second arcuate members 27, 28, respectively. Since the distance between second ends 62, 64 of first and second arcuate members 27, 28 is smaller than the distance between first ends 53, 55 of first and second arcuate members 21, 22, a user can arrange second ends 62, 64 of first and second arcuate members 27, 28 between first ends 53, 55 of first and second arcuate members 21, 22. Preferably, acute angle α is approximately 87 degrees. However, it should be appreciated that acute angle α could be increased or decreased depending on the desired shape and/or manner of the locking engagement between second brackets 12, 12′. Transverse member 29 includes stabilizers 72, 73.

FIG. 3B shows the right side of the invention shown in FIG. 1A. Second stackable rack 10′ is lockingly engaged above first stackable rack 10. Second bracket 12 is not visible behind first bracket 11 and second bracket 12′ is not visible behind first bracket 11′. First bracket 11′ is above first bracket 11. Transverse member 16 connects first and second arcuate members 14, 15 at their respective first ends 17, 19. Similarly, transverse member 26 connects first and second arcuate members 24, 25 at their respective first ends 57, 59. First and second arcuate members 14, 15 are arranged at acute angle α relative to transverse member 16. Similarly, first and second arcuate members 24, 25 are arranged at acute angle α relative to transverse member 26. Acute angle α in first bracket 11 provides a greater distance between first ends 17, 19 arranged on opposite ends of transverse member 16 as compared with the distance between second ends 18, 20 of first and second arcuate members 14, 15, respectively. Acute angle α in second bracket 11′ provides a greater distance between first ends 57, 59 arranged on opposite ends of transverse member 26 as compared with the distance between second ends 58, 60 of first and second arcuate members 24, 25, respectively. Since the distance between second ends 58, 60 of first and second arcuate members 24, 25 is smaller than the distance between first ends 17, 19 of first and second arcuate members 14, 15, a user can arrange second ends 58, 60 of first and second arcuate members 24, 25 between first ends 17, 19 of first and second arcuate members 14, 15. Preferably, acute angle α is approximately 87 degrees. However, it should be appreciated that acute angle α could be increased or decreased depending on the desired shape and/or manner of the locking engagement between first brackets 11, 11′. Transverse member 26 includes stabilizers 70, 71.

Second ends 18, 20 comprise feet 100, 101. Second ends 58, 60 comprise feet 102, 103. Second ends 54, 56 comprise feet 104, 105. Second ends 53, 55 comprise feet 106, 107. Feet 100, 101, 102, 103, 104, 105, 106, 107 cap ends 18, 20, 58, 60, 54, 56, 62, 64, respectively. Feet 100, 101, 102, 103, 104, 105, 106, 107 are identical and interchangeable. Preferably, feet 100, 101, 102, 103, 104, 105, 106, 107 are made of a rubber or silicone or any suitable slip resistant material. When first and second arcuate members 27, 28 are engaged with first and second members 21, 22 in FIG. 3A, the left-most and right-most respective portions of feet 106, 107 of first and second arcuate members 27, 28 are tucked behind first and second arcuate members 21, 22. This arrangement helps maintain engagement between brackets 12, 12′. In FIG. 3B, first and second arcuate members 24, 25 are engaged with first and second arcuate members 14, 15. The left-most and right-most respective portions of feet 102, 103 of first and second arcuate members 24, 25 are tucked behind first and second arcuate members 14, 15.

In FIG. 3A, transverse member 29 connects first and second arcuate members 27, 28. Transverse member 29 abuts first arcuate member 27 and together, where they abut, transverse member 29 and first arcuate member 27 form corner 80. Similarly, transverse member 29 abuts second arcuate member 28 and together, where they abut, transverse member 29 and second arcuate member 28 form corner 81. Preferably, corners 80, 81 are identical but, it should be appreciated that corners 80, 81 need not be identical. Also shown in FIG. 3A, transverse member 23 connects first and second arcuate members 21, 22. Transverse member 23 abuts first arcuate member 21 and together, where they abut, transverse member 23 and first arcuate member 21 form corner 82. Transverse member 23 also abuts second arcuate member 22 and together, where they abut, transverse member 23 and second arcuate member 22 form corner 83. In FIG. 3B, transverse member 26 connects first and second arcuate members 24, 25. Transverse member 26 abuts first arcuate member 24 and together, where they abut, transverse member 26 and first arcuate member 24 form corner 84. Transverse member 26 also abuts second arcuate member 25 and together, where they abut, transverse member 26 and second arcuate member 25 form corner 85. Within first stackable rack 10 in FIG. 3B, transverse member 16 connects first and second arcuate members 14, 15. Transverse member 16 abuts first arcuate member 14 and together, where they abut, transverse member 16 and first arcuate member 14 form corner 86. Transverse member 16 also abuts second arcuate member 15 and together, where they abut, transverse member 16 and second arcuate member 15 form corner 87. In the preferred embodiment, corners 80, 81, 82, 83, 84, 85, 86, 87 are rounded. However, it should be appreciated that corners 80, 81, 82, 83, 84, 85, 86, 87 could be straight, nonlinear, curved, or angled.

FIG. 4A shows a top view of the invention shown in FIG. 1A. First stackable rack 10 is under second stackable rack 10′. Shelf 13′ is between first bracket 11′ and second bracket 12′. Stabilizers 70, 71 are wrapped around transverse member 26. Stabilizers 72, 73 are wrapped around transverse member 29. It should be appreciated that because first and second arcuate members 24, 25 form acute angles α with respect to transverse member 26, a portion of second ends 58, 60 are visible under first ends 57, 59 of first bracket 11′, respectively. Similarly, with respect to second bracket 12′, a portion of second ends 62, 64 are visible under first ends 61, 63, respectively.

Shelf 13′ comprises first rail 41, second rail 43, and netting 90. First and second rails 41, 43 are straight, parallel, and on opposite edges of shelf 13′. First rail 41 connects first arcuate member 27 and first arcuate member 24 through netting 90. Second rail 43 connects second arcuate member 28 and second arcuate member 25 through netting 90. First and second rails 41, 43 are cylindrical and identical. Preferably, first and second rails 41, 43 are made of steel but, could be made of any rigid material for example, plastic. Netting 90 comprises pockets 91, 92 which allow first and second rails 41, 43 to pass through shelf 13′ between first bracket 11′ and second bracket 12′. Netting 90 is preferably mesh however, it should be appreciated that netting 90 could be any suitable alternative for example, canvas. Mesh is preferred because it is sturdy and semi-permeable. If an object supported is dirty or wet, such dirt or moisture can penetrate shelf 13 or shelf 13′. The semi-permeable quality is advantageous because it prevents dirt and/or moisture being left on shelf 13 or shelf 13′. Dirt and/or moisture remaining on shelf 13 or shelf 13′ can cause unwanted expedited wear on the surface of the shelf.

FIG. 4B shows a bottom view of the invention shown in FIG. 1A. Second stackable rack 10′ is under first stackable rack 10. Stabilizers 70, 71 surrounding transverse member 26 of first bracket 11′ are visible because stabilizers 70, 71 have a larger circumference than the circumference of transverse member 26. Similarly, stabilizers 72, 73 surrounding transverse member 29 of second bracket 12′ are visible. Shelf 13 is between first bracket 11 and second bracket 12. First ends 17, 19 of first bracket 11 are visible under second ends 18, 20, respectively. Foot 100 is capped on first arcuate member 14 proximate second end 18. Foot 101 is capped on second arcuate member 15 proximate second end 20. First ends 53, 55 of second bracket 12 are visible under second ends 54, 56, respectively, of second bracket 12. Foot 104 is capped on first arcuate member 21 proximate second end 54. Foot 105 is capped on second arcuate member 22 proximate second end 56.

Shelf 13, like shelf 13′, comprises first rail 40, second rail 42, and netting 95. Shelf 13 is identical to shelf 13′. First and second rails 40, 42 are straight, parallel, and on opposite edges of shelf 13. First rail 40 connects first arcuate members 21, 14 through netting 95. Second rail 42 connects second arcuate members 22, 15 through netting 95. First and second rails 40, 42 are cylindrical and identical. Like netting 90, netting 95 comprises pockets 96, 97, which slidingly engage first and second rails 40, 42, respectively. It should be appreciated that shelf 13 and shelf 13′ could take many forms. For example, shelf 13 or shelf 13′ could be made of continuous wood planks, spaced apart wood planks, or wire.

FIG. 5A illustrates how a user obtains the locking engagement between stackable racks 10, 10′. With first stackable rack 10 positioned on a flat supportive surface, for example, a floor or a table, a user grabs hold of second stackable rack 10′ by gripping transverse members 26, 29. Then a user arranges first bracket 11′ such that second ends 58, 60 are tucked under transverse member 16 and between first and second arcuate members 14, 15. Extension stubs 35, 46 rest atop transverse member 16.

With the same hand that placed first bracket 11′, a user then grabs transverse member 23 and presses it toward first bracket 11 in the direction shown. Next, a user places second bracket 12′ down and around second bracket 12 to the outside. When the user removes inward pressure from second bracket 12, second bracket 12 flexes outward to its unstressed state. Second ends 62, 64 are tucked under transverse member 23 and between first and second arcuate members 21, 22. Extension stubs 36, 47 rest atop transverse member 23.

As shown in FIG. 5B, in locked arrangement, second ends 58, 60, 62, 64 are engaged with their corresponding corners 86, 87, 82, 83. A portion of shelf 13′ is removed to show second end 64 in locked engagement with second arcuate member 22 and transverse member 23. It should be appreciated that stackable racks 10, 10′ could be stacked in the upright arrangement as shown or in the upside-down arrangement. In the upside-down arrangement, a user can place second stackable rack 10′ along a floor or some other supportive surface with transverse members 26, 29 in contact with the floor or other surface as shown in FIG. 1B. Then a user can place first bracket 11 such that transverse member 16 rests atop first and second extension stubs 35, 46 of first bracket 11′ and second ends 58, 60 of first bracket 11′ protrude inwardly between first and second arcuate members 14, 15. Next, a user can place second bracket 12 on top of second bracket 12′ by first pressing transverse member 23 inward toward first bracket 11 and second tucking corners 82, 83 around second ends 62, 64. Transverse member 23 rests atop first and second extension stubs 36, 47. Once first and second stackable racks 10, 10′ are lockingly engaged, they can be moved and/or lifted together. It should be appreciated that due to the nature of the locking arrangement and the flexibility of first and second brackets 11, 12, 11′, 12′, first and second stackable racks 10, 10′ can automatically disengage, if necessary. If a user suspends first and second stackable racks 10, 10′ by holding transverse member 26, 29 and first stackable rack 10 is supporting a load that it too heavy, first stackable rack 10 can automatically disengage. A user does not have to manually disengage first stackable rack 10.

FIG. 6 shows an exploded view of second stackable rack 10′ as shown in FIG. 1A. First bracket 11′ comprises first and second arcuate members 24, 25 and transverse member 26. Second bracket 12′ comprises first and second arcuate members 27, 28 and transverse member 29. First bracket 11′ further comprises cantilevered first and second extension stubs 35, 46. Second bracket 12′ further comprises cantilevered first and second extension stubs 36, 47. Each extension stub 35, 36, 46, 47 comprises a respective button 37, 38, 48, 49 protruding toward the other. Buttons 37, 38, 48, 49 are part of spring button clips arranged within first and second extension stubs 35, 36, 46, 47 to be described further below. First bracket 11′ is arranged to receive feet 102, 103 and stabilizers 70, 71 which make the invention a highly stable rack whether arranged upright or upside-down. Second bracket 12′ is arranged to receive feet 106, 107 and stabilizers 72, 73. First and second extension stubs 35, 46 are arranged to receive first and second rails 41, 43, respectively, of shelf 13′. First and second extension stubs 36, 47 are arranged to receive first and second rails 41, 53, respectively. Second rail 43 is hollow and arranged to slidingly receive second extension stubs 46, 47. Second extension stubs 46, 47 slidingly engage the inside circumference of second rail 43. Second rail 43 comprises aperture 110 to lockingly engage button 38 and aperture 111 to lockingly engage button 49. First rail 41 is hollow and arranged to slidingly receive first extension stubs 35, 36. First rail 41 contains apertures 112, 113 (not shown) opposite apertures 110, 111, respectively. In FIG. 6, apertures 112, 113 are not visible because they are facing apertures 110, 111. Aperture 111 of second rail 43 is axially displaced from aperture 110. Aperture 111 of second rail 43 is arranged to slidingly receive second extension stub 47 and lockingly engage button 49 of second extension stub 47.

Netting 90 of shelf 13′ slidingly engages first and second rails 41, 43. Specifically, pocket 91 of netting 90 slidingly engages first rail 41. Pocket 92 of netting 90 slidingly engages second rail 43. Pocket 91 is formed by folding over netting 90 and sewing closed the folded over portion. Seam 93 represents where netting 90 is folded over and sewn closed. Seam 93 is longitudinally arranged along netting 90. Pocket 92 is identical to pocket 91. Seam 94 represents where netting 90 is folded over and sewn closed. When pockets 91, 92 are covering first and second rails 41, 43 netting 90 is taut.

FIG. 7A is a detail of second arcuate member 28 of second bracket 12′ and second cantilevered stub 47 as shown in FIG. 6 except foot 107 is capped in FIG. 7A, not exploded as shown in FIG. 6. As previously discussed, first and second extension stubs 33, 34, 35, 36, 44, 45, 46, 47 are identical and all contain removable spring button clips. In FIG. 7A, second extension stub 47 contains removable spring button clip 50. When positioned in second extension stub 47, spring button clip 50 is locked in place because button 49 protrudes through aperture 51 arranged in second extension stub 47. FIG. 7B shows spring button clip 50 partially extruded from second extension stub 47. Spring button clip 50 can be removed when button 49 is pressed into aperture 51 with a small object, like a pen cap, and pressed outward toward open end 52 of second extension stub 47. Once spring button clip 50 protrudes from open end 52 enough so that a user can grab it, spring button clip 50 can be pulled out.

FIG. 7C shows spring button clip 50 completely extruded from second extension stub 47. Spring button clip 50 is a straight edge, V-shape, single button clip available from Valco/Valley Tool & Die, Inc. located at 10020 York Theta Drive, North Royalton, Ohio, 44133. Other suitable spring clips could be implemented as well. As shown, spring button clip 50 is biased open so that when it is pressed into second extension stub 47, button 49 automatically protrudes through aperture 51 when it is able to lock spring button clip 50 in place.

FIG. 8 shows a portion of first bracket 11′ as defined by the detail box shown in FIG. 1B. Stabilizer 71 is attached to transverse member 26. Stabilizer 70 is suspended below and not attached to transverse member 26. Stabilizers 70, 71 are similar to round saddle feet without pegs, which are used to lift pieces of furniture off the floor to prevent damage. Stabilizers 70, 71 are identical to stabilizers 72, 73. Stabilizer 70 is cylindrical and has through-bore to accommodate transverse member 26. Additionally, stabilizer 70 has slit 75, which allows stabilizer 70 to flexibly open and close around transverse member 26. Stabilizers 70, 71, 72, 73 are preferably rubber or a silicone. However, they could be made of plastic with gripping or any other suitable slip resistant material. Preferably, stabilizers 70, 71 are cylindrical however, it should be appreciated that they could take any form. For example, stabilizers could be rectangular prisms. Additionally, it should be appreciated that brackets 11, 11′, 12, 12′ could be any shape rather than cylindrical.

Thus, it is seen that the objects of the present invention are efficiently obtained, although modifications and changes to the invention should be readily apparent to those having ordinary skill in the art, which modifications are intended to be within the spirit and scope of the invention as claimed. It also is understood that the foregoing description is illustrative of the present invention and should not be considered as limiting. Therefore, other embodiments of the present invention are possible without departing from the spirit and scope of the present invention.

REFERENCE NUMERALS

-   10 first stackable rack -   10′ second stackable rack -   11 first bracket -   11′ first bracket -   12 second bracket -   12′ second bracket -   13 shelf -   13′ shelf -   14 first arcuate member -   15 second arcuate member -   16 transverse member -   17 first end of member 14 -   18 second end of member 14 -   19 first end of member 15 -   20 second end of member 15 -   21 first arcuate member -   22 second arcuate member -   23 transverse member -   24 first arcuate member -   25 second arcuate member -   26 transverse member -   27 first arcuate member -   28 second arcuate member -   29 transverse member -   33 first extension stub -   34 first extension stub -   35 first extension stub -   36 first extension stub -   37 button -   38 button -   40 first rail -   41 first rail -   42 second rail -   43 second rail -   44 second extension stub -   45 second extension stub -   46 second extension stub -   47 second extension stub -   48 button -   49 button -   50 spring button clip -   51 aperture -   52 open end -   53 first end of member 21 -   54 second end of member 21 -   55 first end of member 22 -   56 second end of member 22 -   57 first end of member 24 -   58 second end of member 24 -   59 first end of member 25 -   60 second end of member 25 -   61 first end of member 27 -   62 second end of member 27 -   63 first end of member 28 -   64 second end of member 28 -   70 stabilizer -   71 stabilizer -   72 stabilizer -   73 stabilizer -   74 through-bore -   75 slit -   80 corner -   81 corner -   82 corner -   83 corner -   84 corner -   85 corner -   86 corner -   87 corner -   90 netting -   91 pocket -   92 pocket -   95 netting -   96 pocket -   97 pocket -   100 foot -   101 foot -   102 foot -   103 foot -   104 foot -   105 foot -   106 foot -   107 foot -   110 aperture -   111 aperture -   112 aperture -   113 aperture 

1. A stackable rack assembly, comprising: a first rack comprising a first bracket, said first bracket comprising: a first completely non-linear arcuate member having a first end and a second end, and further having a first extension stub cantilevered from said first completely non-linear arcuate member proximate said second end; a second completely non-linear arcuate member having a first end and a second end, and further having a second extension stub cantilevered from said second completely non-linear arcuate member proximate said second end; and, a transverse member connecting said first and second completely non-linear arcuate members together at their respective first ends, wherein said first and second completely non-linear arcuate members each are arranged at an acute angle with respect to said transverse member; a second bracket identical to and arranged opposite from said first bracket of said first rack; and, a shelf secured between said first and second brackets; and, a second rack identical to said first rack, and operatively arranged to lockingly engage said first rack to form said rack assembly.
 2. The stackable rack assembly recited in claim 1, wherein said acute angle is approximately 87 degrees.
 3. The stackable rack assembly recited in claim 1, wherein said first and second completely non-linear arcuate members and said transverse member are unitary.
 4. The stackable rack assembly recited in claim 1, further comprising a first corner located where said first completely non-linear arcuate member meets said transverse member and a second corner located where said second completely non-linear arcuate member meets said transverse member and said corners are rounded.
 5. The stackable rack assembly recited in claim 4, wherein said corners of said first rack are arranged to engage said second ends of said second rack to enable a locking engagement between said first and second racks.
 6. The stackable rack assembly recited in claim 1, wherein said extension stubs of said second rack rest atop said transverse members of said first rack to enable a locking engagement between said first and second racks.
 7. The stackable rack assembly recited in claim 1, wherein said second ends of said second rack are tucked behind said first and second completely non-linear arcuate members of said first rack.
 8. The stackable rack assembly recited in claim 1, wherein said second ends of said second rack are tucked under said transverse members of said first rack.
 9. The stackable rack assembly recited in claim 1, wherein said extension stubs further comprise a partial through-bore and a spring button clip arranged in said partial through-bore to engage said shelf.
 10. The stackable rack assembly recited in claim 1, wherein said shelf comprises a pair of longitudinally arranged parallel rails arranged to engage spring button clips of said extension stubs and a netting having two sewn pockets to slidingly engage said rails and form a shelf between said rails.
 11. The stackable rack assembly recited in claim 1, wherein said first rack further comprises one rubber foot arranged around said second end of said first completely non-linear arcuate member and another rubber foot arranged around said second end of said second completely non-linear arcuate member.
 12. The stackable rack assembly recited in claim 1, wherein said second rack further comprises at least one slip resistant stabilizer arranged around said transverse members.
 13. A stackable rack, comprising: a first bracket, said first bracket comprising: a first completely non-linear arcuate member having a first end and a second end, and further having a first extension stub cantilevered from said first completely non-linear arcuate member proximate said second end; a second completely non-linear arcuate member having a first end and a second end, and further having a second extension stub cantilevered from said second completely non-linear arcuate member proximate said second end; and, a transverse member connecting said first and second completely non-linear arcuate members together at their respective first ends, wherein said first and second completely non-linear arcuate members each are arranged at an acute angle with respect to said transverse member; a second bracket identical to and arranged opposite from said first bracket of said first rack; and, a shelf secured between said first and second brackets.
 14. The stackable rack recited in claim 13, wherein said acute angle is approximately 87 degrees.
 15. The stackable rack recited in claim 13, wherein said first and second completely non-linear arcuate members and said transverse member are unitary.
 16. The stackable rack recited in claim 13, wherein said extension stubs further comprise a partial through-bore and a spring button clip arranged in said partial through-bore to engage said shelf.
 17. The stackable rack recited in claim 13, wherein said shelf comprises a pair of longitudinally arranged parallel rails arranged to engage spring button clips of said extension stubs and a netting having two sewn pockets to slidingly engage said rails and form a shelf between said rails.
 18. The stackable rack recited in claim 13, further comprising one rubber foot arranged around said second end of said first completely non-linear arcuate member and another rubber foot arranged around said second end of said second completely non-linear arcuate member.
 19. The stackable rack recited in claim 13, further comprising at least one slip resistant stabilizer arranged around said transverse member. 